/*
 * Copyright 2021 DataCanvas
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.dingodb.calcite.service;

import io.dingodb.calcite.executor.LoadDataExecutor;

import java.util.HashMap;
import java.util.Map;

public class LoadDataService {

    public static Map<String, LoadDataExecutor> loadDataExecutorMap = new HashMap<>();

    public static final LoadDataService DEFAULT_INSTANCE = new LoadDataService();


    private LoadDataService() {
    }

    public void addLoadDataExecutor(String id, LoadDataExecutor loadDataExecutor) {
        loadDataExecutorMap.put(id, loadDataExecutor);
    }

    public void processStream(String id, byte[] data) {
        LoadDataExecutor dataExecutor = loadDataExecutorMap.get(id);
        if (dataExecutor != null) {
            dataExecutor.loadRemoteData(data);
        }
    }

    public long endStream(String id, String flg) {
        LoadDataExecutor dataExecutor = loadDataExecutorMap.get(id);
        long cnt = 0;
        if (dataExecutor != null) {
            cnt = dataExecutor.endRemoteData(flg);
        }

        loadDataExecutorMap.remove(id);
        return cnt;
    }

}
